Question

Ca->CaO->Ca (OH2)->Cu3(PO4)2->Cao осы есепті шығару керек?

Answer 1

1) 2Ca+O2=2CaO

2) CaO+H2O=Ca(OH)2

Answer 2

Ca->CaO->Ca (OH 2)->Ca3(PO4)2->Cao

1)2Ca+O2=2CaO

2)CaO+H2O=Ca(OH)2

3)Ca(OH)2+2HCl=CaCl2+2H2O

4)3CaCl2+2H3PO4=Ca3(PO4)2+6HCl

5)Ca3(PO4)2 = 3CaO + P2O5

Answer 3

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